morgan



Oct. 2, 1928.

E. c. MORGAN MINING AND LOADING APPARATUS y Filed June 23. 192 2 Sheets-Sheet Patented Oct. 2, 1928.

UNITED STATES PATENT OFFICE.

EDMUND C. MORGAIF7 OF NEW YORK, N. Y.; OLIVE EUGENIE MORGAN EXECUTRIX OF SAID EDMU'NI) C. MOR-GATT, DEGEASED.

MINING ANI) LOADNG' AIPPARA'IUS.

Application filed Een@ 523,

. ,3' ding ot is My invention relates to miningl and lo machines, and one ot' the objects ther the provision of improved and efiicient ratos of this type.

More particularlT it is the object present invention to provide improved l anism for operati-intr splitting; tools to dielodgre coal from an arc mte mine Wall po sition to be .automatica v received madl" ingr apparat-ns and transferred automaticallj,7

to a mine car on a track in the mine ch amber back of the mining; and loadin apparatus.

Another object of the present invention is the provision of implementati. conveyer t' mechanism arranged to travel areaal-ely along; a portion of the arcuate mine wf ll to move the dislodged material into pos ,fon to be received by the main conveyor ol the leading apparatus.

Another object of the invention is the provision in a miningl and loadir. g machine ot supplemental. convcver mecha em and splitting tools on oppoeite sides olf the machine arranged to occupy tclded Dositiona at one side oit the machine while those on the other side are in operation.

Other objects hereinaftera the novel combinations and l tures being; set forth in tbe appended claims. fi" Referring to the acconiipanying draiiire@ Fig. l is 1, iolan view oi my combined n. ing and loading machine;

Fig'. Q an elevational view of the comoit the Splitting' or d' tionsand a. poiv 2---2 oit Fi l g f Fig 3 an enlarged sectional elevation ilf aire the zmchorinemechanism fior the f tools in operating posi- .con in section on the line ion taken through. c inc' tool arms to anchors. .c r one oi' the t" Fig. 7 is a Sectional side view on the line 7-T oi Fig. 3;

Fig. 8 is a Sectional plan view on the line 8&8 oil F- g an l 9 r d' ammatic viewv of the elec- "A u n h circuits and connections ilor controlling of thc invention. will appear' bined mining; and loading;` machine with the 132D. Serial No. 391,212.

the application and release of the anchoring mechanism for thc splittingt or di Qing tools.

Referr'. of to Figs. l and 2, it Will be seen that the m am frame l0 is mounted on tractor mechanism comprising endless belts ll. and l2 r advancing the miningv an d loading ma chine alone' the mine floor in advance of the track 13. Thilo the rear portion oli the main iframe l0 is preferably elevated 'from the licor. the forward portion is adapted toreet directlv on the :door as ind icatcd at 14 in Fig. 2. so that when the veroical roof jacks are operated, ae hereinafter deecribed7 the pres sare at the licor will be exerted over that port on of the frame designated lll and not on the tractor mecaanism.

l prefer to use tractor mechanism operatively7 connected to the motor l5 so as to distribute the weight of the miningr and loading' machine over a Wider area during); movement ot the machine over the mine floor to advanced posi ons. The rear end oiE the motor Shaft provided with a Worm lo in mesh with the Worm `.gear 17 at the center ot' the transverse shaf... i8. Therefore, when the clutch i9 is throi-.vn in bv means of thc lever 20. percer maj.Y be transmitted from the motor to the tractor mechanism to move the minu' ,d loa dine' machine either 'lorwardli7 or rmrivardlv depending upon the direction oit the motor as controlled by Well known elec tric controlliingmechanism.

At the forward end ot' the motor l5 is another Worm 2l meshing; with Worm 22 the center of the tra isverse @haft 23 the ends ci which are provided with Worms 9A and meshing; respectively with the Worm roars 2G and 2T on the vertical shafts 28 and coni r frame comprising uprigght spacedN apart side walls 2O and 3l between which is adapted to travel an endless conveyor The forward end ci the conveyer frame provided with a beveled or scocpinaportion which is adapted to rest on the mine licor 1 the apricjlit mine Wall from which ial ie to be mined. It will be secr. referring1 to Fig". 2 thatl the conveyor is inclined upwardlyand rearivardli7 so as to e nd over the too of the motor and te the rear thereof. The rear end of the eonreveil' frame is secured to the iramc of' the motor l5 b v meansl et the spacedapart brach et arms 34x and 35, as shown in Figs. l and 2.

n AD The endless conveyor 32 may loc driven hy sprockets 36 operated by a separate electric motor illustrated diagrarninatically at 3'? in Fig. 2. f

As shown in Fig'. 2, the main trame lO is provided with a rearward extension 3S to which is pivoted at 39 a deep storage hopper l0 which is connected to the forward end ot the rear conveyor trame llll. An endless conveyer Ll2 is mounted .in the conveyer frame /l-l. and extends to the bottoni ol a hopper AO above the pivot 39. The endless conveyor may be driven by sprockets 43 to which is connected an electric motor illustrated diagrariam matically at dal; in Fig. 2. Vlfhe conveyer frame Ill is provided with a forwardly eX- tending central arin l5 which is pivot-ed at 4G toV the U-shaped lrame l? secured to the bracket arms 34e and he pivot lll is in vertical alinen'ient with the pivot and the rear conveyer may therefore he swung' on the vertical. axis through the pivots 39 and 4G, and by reason et' the U-shape'd traine 47 and theshape of the hopper d0,.delivery communication between the coni/'eyei- 32 ant the conveyor 42 may be maintained :tor the variouslatcral positions o` the rear conveyor. The roar conryer may be extended into a mine car 48 on the track lf3 in rearward alinement with the main frame i0, or into a mine car on the tra l; at either side of the track 13 and parallel thereto,

At the forward end of the main conveyer frame at opposite sides ot the scoop 33- are pivoted at'llS and' 50 supplemental arcuate conveyers 5l and 52 each comprising,- an arcuate frame with an endless 'flight conveyer mounted thereon and connected for operation to drivingmechanism mounted on the vertical side plates 30 and 3l. Since these supplemental conveyersv are alike in construction a description of one will he suili cient.

Referringr to Figs. l and l, it will be seen that the arcuate swinging supplemental conveyer comprises an arcuate traine 53. This frame provided with a thrivingY sprocket illustrated'at 54 in Figi; l one end ot the frame and with an idler illustrated at 55. An endless sprocket chain 56 is mounted vthe frame 53 to be guided alone; the guida way 57, and on the forward side alone; the guideway 58. The front side' olthe traine 53 or that ide which faces the mine wall, shown in l, is provided with only one lower plate 59 which adapted to rest flat on the Hoor, as shown in Fig. `2. The endless chain 56 is provided with laterally extending flights 60 which slide over the upper surface of the arcuate plate 59-in the direction of the arrow 6l so as to move material along' Jdie arcuate base of the mine wall toward the receiving' end of the conveyer 32. lt should be understood that the sui'iplernental arcuate conveyers 5l and 52 operate in opposite directions so'as toeach move material `along the mine wall toward the scoop 33.

By referring to Fig. 5,V which is asectional view on line 5-5 ot Fig. 4: lookingr in the direction of the arrows, it will he seen that the driving; sprocket 54 is connected hy means of the vertical shaft 50 to the spur gear 62 meshing` with the spur gear 63 on the vertical shaft 64 and carrying` a bevel gear 65 which meshes with the bevel gear 66 on the horizontal shaft 6i'.

lt should he noted that the shaft 67 is the lower transverse shaft of the conveyor 32 and arries at its ends a pair of sprockets,V

one ot which is shown at 68 in Fig; 5 'for driving' one of the chains 01": the conveyer. as shown at 69 Figi: The frame 3l shown inFigr. 5 is an extension of the .tra-me 3l rigidly connected to the latter. and the sup-- plernental conveyor 53 is pivotally connected to the extension 3l', as shown at 50 in Fig. 5, so as to swing on the upright axis ot the shaft 50. By Ine-sns ot this arrangement power may loe transn'iittcd to each of the supplemental conveyors whenever the main conveyer 32 is driven irrespective of the positions to which the supplen'icntal conveyors are swung. ln order to permit the outer portions Vof thel supplemental Vconveyeria to rest flat on the iloor, as shown in Figi'. 2, the frame 53 may be hcnt downwardly as illustrated at'TO in llos. l and 5. vrlhis arranhement also facilita s movement ot the material from the floor to and over the scooping;l end 33 of the main conveyor iframe.

By referring to F 2 and 3i it will be seen that the worin gear 27, which connected to he driven by the n'iotcr l5 through the worin gearing` 21, 22., the shaft 23 an worm 25, loosely mounted the v rtical hollow shaft 7l, the lower end of .oh rotates in a bearino in the plate l and the upper end or which rotates in hearings "Z2 and 73 secured to the outer wall ot the vertical plate 3l ot' the main conveyer ne.

lntern'iediate the ends of kthe hollow shaft 7l is splined clutch element Til adapted to be operated hy means o'i' a lever 75 pivoted at .76 to the plate 3l. T he worin gear 27 carries at its upper side clutch element 77 adapted to he engaged hy the clutch y clement 74. Therefore. when the motor l5 is operated and the clutch 74s, 77 thrown in, motion will be lthe direction pulleys 8l and to and around a flexible anchorage pulley 83 mounted in a pulley hlock 84: which is .pivotcd at 85 in o. horizontal recess 26 at the or'l r end of an arm 87 which carries a coul'spiit tool 88, as shown in Fig. 8. The direction pulleys 8l,

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their initial po loading inne have provided :n on the vertical ,e @ne end of the i' .li'nin 1 connected to inet e meehes w on the ver on the Veitie the spur gem? L99 i 107 adopted to he so as to effect tiene" intermediate portions of the frame. The frame 114 is also provided With splitting tools 137 each having an arm 138 on opposite sides of the machine, as shown iii Fig. 1. The mechanism ior operating these splitting` tools is illustrated in 3. At the rear end of the frame 114 is located a rope drum 139 keyed to the upper end et the shaft 140 which is provided with a spline 141 slidable along; a slot iii the hollow shaft 71. There-- tore, When the rope drums 78 and 79 are rotated to exert pulls on the ropes and 92, the rope drum 139 vvill also be rotated. Se cured te the rope drinn 139 are the ends of a rope 142 Which extends over the direction pulleys 143 and 144 at the forward end ot the frame 114. The intermediate loop portion of the rope 1.42 extends around the pulley 145 mounted on the arm 138, as shown in Fig. 1. The hub of the arm 138 is keyed to the upper end et the shaft 146, as shown in 3. The sliait't 146 extends downwardly from the frame 114 and is provided Vwith spline 147 which is adapted to slide along' the slot in the hollow shai't 99.

lt Will thus be seen that by initially operating'the motors 125 at the opposite sides ot the machine, the trame 114 may be projected against the roof et the mine chamber to anchor such trame lirinly in position.y lt is preferable to have the forward root iacls movable through the forward portions oit' the frame 114 so that a bending` strain Will'iiot be put on the frame 114 and so that anchoring et the forward portion of the conveyer traine may be secured independently et the rear roof iaclr mechanism. This is particularly advantageous Where the root adjacent the Working' face of the mine Wall may be at a somewhat different elevation than the root Where the roof jacks 115 are applied.

In restoring the splitting' tools to their initial operating` positions Where they are approximately at right angles to the path oli travel of the mining and loading machine7 one rope 103 connected betvveeii'two rope drums 102 and 104, is sullicient, because When the rope drum 104 is rotated by means o the pull on the rope 103, motion will be transmitted through the shafts 99 and 146 to the arms 97 and 13S as vvell to the arm 87. Such restoringl movement can easily be eii'ected by rotation of the rope drum 104 on the axis oli the shafts 99 and 146y but Wh en the splitting tools are operated arcuately along` the mine Wall, as illustrated iii Fin' 1, greater leverage and therefore more power is secured Y by connecting the ropes to the outer portions of the arms as illustrated.

ln order to further biacethe machine dui'- ing the operation oi the splittin devices7 particularly when they are operated only on one side oi the machine, the diagonal Wall jacks I shown in Figi.

space is avail- 14S and 149 may be pi'ovidedias l. However, when sutcieiit folded position as shown in Fig. 1. This is permitted by reason of the cylinders 117 and 06 havingl a seace belovv there7 shown iii r1tilhatever the positions of the lilies. 2 and 3.

poitation the machine the supplemental conveyors on opposite sides may be swung into folded position and the splittinga tools brought to parallel positions at 'opposite sides of the ions. f

lt should be noted that the mining and loadniachine herein disclosed. may be used 'for i .ning and loading coal from a mine hea ding` iii a com a'atively Wide mine chamber and this operation is preferred Where space is available, on account of the balancing' effect to the mining; tools moving toward each simultaiieously7 but it should also be l -stood that th machine may be used in wall operations by the movement of the "2' tools either on one eide or the other 9 illustrates diagramniatically the circuits and connections for the electrically operated root jacks. Vilhcn an electric motor of any oit said root i'aclrs is started the reversing' switch o cupies the iiull line position whereupon the current will passA from the positive ii'iain through the field 151 of the electric motor and thence through the switch blade the switch oit the automatic eirci iit brealer. the magnet 154 of this automatic circuit breaker and thence through the conductor 155 the armature 156 oit the electric noter, the tue-e 157 andthe other switch blade ot the switch 150 and `linally to the ne!) tive main. litter this circuit has been closed and the motor operated to project the root 'ich into anchoring position, the tigliteninp,a ot i cot jack agigamst the roof Will slow down otor and in its etloi't to tighten the root -clr more firmly iii place, the flow of the curiit will increase until it ivill be suicient to anse the ii'iagnet 1K4 to automatically open l e circuit breaker and stop the motor and 'luis discontinue the operation of the root zielt. When the circuit breaker is operated l e ircuit to the motor is interrupted at the witch and since tie current is then cut li from the inc-tor the latter will sto Vheu the motors are started they acquire consider-- .n coiiif'eyer and the uppermost splitting;` ils let doivii into comparatively loiv posillo lease.

able momentum because the load operated thereby is comparatively small since only the frame lilfl and the parts carried thereby need bc lifted tov-:ard the roof but as soon as the roof is engaged ronsidcrably more power iicccssaryf.V This true with respect to either the forward roof :ichs or the rear roof jacks and any of the electric niiotors therefor. The building up of the momentum assists in firmly securing the roof in position. Therefore, when the roof jacks are to be released `from a position of rest, 'the motors may require more current to start them to overcome the inertia and to loosen or release the roof jacks. In other words, when the roof jacks were tightened in position the motors were still operating and with the benefit of the momentum above referred to, but when the roof aclis are to be released, the motors must start from restanti reduire more current to c'lllcct such release of the roof jacks. It is, therefore, preferable in sarting the electric motors to release the roof acls to throw the reversing switch 150 to the dotted line position shown in Fig. to not only reverse the current through the motor but also to cut out the resistance of the magnet ll of the automatic circuit brealter and rely only upon the fuse T to protect the motor. It will thus be seen that the circuits and connections shown in Fig. 9 will cn able the power to the motors to bc cut oli automatically when the roof jack are .firmly set in anchored positions and when the motors are reversed to release the roof jacks, suliicient elec yric power may be transmitted to the electric motors to effect such re- ()lnfiously those cilled in the art may make various chan in the details and arrangement,1 of pai without departing from the spirit and scope ot my invention as defined by the claims hereto appended, and I wish, therefore, not to bc restriccd to the precise construction herein disclosed.

Having thus fully described and shown an embodin ent of my invention, what I desire to scure by Iiel l' ars Patent ofthe United States, is: i

l. In a mining and loading machine, the combination with suii A' nti'ng framework, of coal splitting mechanism mounted on said framework for arcuate movement relatively thereto and along an upright mine wall,

means for operating said coal splitting mech-` anism to dislodge material -`trom said upright mine a conveyor vlor transferring dislodged material toward loading position, and a sa pleine` 'tal Yco1 veyer for Y, moving dislodged material along the base of the mine wall, toward the receiving end of said conveycr.

Ina njiining' machine, the combination with a supporting frame, of anchoring mechanism therefor.' to effectan almtment, a plurality of elongated arms mounted on said frame to swing on upright axes, penetrating wedging tools mounted onthe outer ends of said arms in position to penetrate deeply the solid upright coal face and tear the coal therefrom in large pieces over a wide area, and means comprising rope gearing to swing said elongated arms on said upright axes While said frame remains anchored, to operate said tools to eli'ect such disl-odgment of the coal from the mine Wall.

3. In a mining machine, the combination with a main frame, of a supplemental frame mounted on said' main frame for arcuate movement relatively thereto on an upright axis, a plurality of parallel horizontal elongated dislodging tools mounted on said supplemental frame in uprightspaced-apart relation in position to dislodge material from the mine wall along the whole upright face between the floor and roof of the mine chainber by parallel bodily lineal movements of said tools by the swinging thereof on such upright axis, and means for operating said dislodging tools by swinging them on such upright axis to cause such tools to penetrate the solid upright face of the coal vein and split portions therefrom over such wide area and in comparatively large lumps. y

4. In a mining machine, the combination with a main frame having a forward extension adapted to rest on the floor of a mine chamber, of roof jack mechanism for anchoring such forward extension between the licor and roof of the mine chamber, an upright seies of coal splitting tools adapted to penetrate the solid unmined mass and form upright cleavages therein inside of the front upright face thereof to dislodge the coal between the floor and roof in comparatively large lumps, means for supporting said coal splitting tools to swing on an uprightaxis relatively to said roof jack mechanism, and means mounted on said extension for swinging said split-ting tools along arcuate paths of travel while such extension remains anchored by said roof jack.

5; In a mining and loading machine, the combination with a conveyer comprising a stationary bed with transverse flights adapted to travel along the same, of a supplemental conveyor pivoted to one corner of the forward end of said first-named conveyer and extending laterally therefrom, said supplemental conveyor comprising a traveling chain having spaced l'lights extending outwardly therefrom, means for dislodging material from a mine wall into the range of act-ion of said supplemental conveyor, and means for operating said' supplemental conveyer to deliver dislodgedmaterial to said `first-named conveyer.

G. In a mining and loading machine, the combination with a supporting frame, of a main conveyer mounted thereon, a supplemental conveyer elongated laterally from the forward end of said main conveyer and adapted to occupy an elongated arcuate position approximately parallel to the arcuate face of the mine Wall, and dislodging mechanism mounted on said supporting frame in position for an arcuate dislodging pat-li of travel along the mine Wall above said supplemental conveyer. Y

7. In a mining machine, the combination with a supporting frame, of a pair of coal penetrating Wedging tools mounted on sait frame for movement in opposite directions to- Ward each other on spaced-apart upright aXes, the penetrating end of each tool being farther from its aXis of movement than the Wedging surfaces receding from said penetrating end, and means for operating said devices by swinging arcuate movements thereof relatively to said frame Vand in opposite directions toward each other to cause each to penetrate the solid face of a coal vein in its native state and by Wedging action tear the coal from such face over a Wide area adjacent said dislodging devices.

8. In a mining and loading machine, the combination with a supporting frame, of loading apparatus comprising a conveyer on said supporting frame, coal splitting mechanism mounted on said frame at opposite siees of said conveyor, and means for operating said coal splitting mechanism by swinging movements thereof rrelatively to said frame and in oppositedirections toward the for- Ward receiving end of said conveyei'.

9. In a mining and loading machine, the combination with a supporting frame, of a main conveyor mounted thereon, supplemental conveyors extending laterally from the forward end of said main eonveyer and traveling in opposite directions toward the receiving end of said main conveyor, dislodging devices at opposite sides of said main conveyer, and means for operating said dislodging devices by swinging movements thereof in opposite directions toward the receiving end of said conveyor above said supplemental conveyors. i

10. In a mining machine, the combination With a main frame, of a supplemental frame pivotally connected to the forward end of said main frame at one side thereof and adapted to be moved into folded position along one lateral side of said main frame, a main conveyor mounted on said main frame, and a supplemental conveyor mounted on said supplemental frame to travel along an arcuate path close to the floor in position to transfer material toward the receiving end of said main conveyor When said supplemental frame is adjusted to a 'position extending laterally away from the forward end of said main frame. Y

1l. In a mining machine, the combination With a main frame, of a conveyor having superposed portions traveling in opposite directions to and from a forward receiving end of said main frame adapted to rest on the floor of a mine chamber at the base of an arcuate mine Wall, a supplemental frame pivotally connected to said main frame at one side of the forward receiving end thereof and adapted to rest on the mine floor and extend arcuateiy along s uch arcuate mine Wall, 'and a traveling supnlementil conveyor mounted on said supplemental frame to transfer dislodeed material long such arcuate mine Wall toWad the receiving end of said main conveyor.

l2. In. coal mining and loading apparatus,

lor mechanism to form upright cleave-,ges in the Amedi mass of coal substantially inside ot he front upright face thereof to effect such dislodgment of the coal, and loading apparatus mounted on said `trame and having a receiving portion adjacent the range of operation of said dislodgiiig mechanism.

l; In a mining and loading machine, the combination With digging mechanism for effecting upright cleavage of coal from the upright face of an arcuate mine Wall from the floor to the roof of the mine chamber, of means for opera-t'ng said digging mechaiiism including swinging feeding movement thereof through an arc of approximately ninety degrees, and a conveyor mounted in fixed relation to said digging mechanism With its receiving end below the horizontal path of travel of said digging mechanism.

let. In a mining machine, the combination With a base frame, of Van upper movable fra-nie, means for adjusting the elevation of said upper frame and anchoring the-same to the roof of the mine chamber, a plurality of splittingl tools mountedion said frames, and means for swinging said tools relatively to said frames -while the latter are anchored between the licor and roof of the mine chamber. i Y

15. In a mining machine, the conibination with a base frame, a splitting' tool mounted thereon for arcuate movement relatively thereto on an upright axis, means on saidbase frame' for swinging said splitting tool, an upper movable frame, an addition al splitting tool pivotally connected to said upper frame 7 ging n'ioveirent relati 7olythereto on nt axis, roo cl mec anisin between an upi u said frames for anchoring thembetweenthe floor and roof of the mine chamber, and means mounted on said frames for transmitting power to said splitting tools to swing the creasing the power thereof to release said roof jack.

17. In a mining machine, the combination with a jack, oit means comprisingr an electric motor for operating; said jacl; to ancho-1mer position, a resistance in circuit with said motor, and a switch for reversing said motor and for cutting; out said resistance to crease the power of said motor to effect release of said jack.

18. In a mining; machine, the combination with a jack, of means comprising' an electric motor for operating said jack., a circuit brealer connected to said motor to automatically interrupt the iow ofi-current through said motor to stop the same when said jack has been moved to anchoring position, and a switch for reversing said motor to etli'ect the release of said jack.

19. In a mining); machine, the combination with a supporting frame, oit an abutment adapted to engage an upright wall of the line chamber, a coal digging` and splitting, tool, means for mounting said tool on said frame to swing on an upright axis while said abutn'ient resists lateral swerving of said trame, and means comprising rope gearing' for exerting a continuous thrust on said splitting tool by swingingthe same on said upright axis.

Q0. In a mining;- machine, the combination with a supporting; frame, of a wall abutment, a dislodgingj tool adapted to penetrate the solid of the mine vein and tear away the iace ot the mine vein, and means con'iprisingig rope gearing for exerting a continuous :ioiward thrust said tool-away trein said wall abutment.

21. In a mining machine, the coml'iination with a supgiiorting trame, of wall jacks on the opposite sid j of the 'forward portion of said frame, penetratin@l wedgiug devices mounted on said 'trame for swinging movements in op posite directions, and means i'or operating said penetrating' wedging` devices by irmpartingv continuous forward movements thereto to cause the Same to act on the coal face while the coal is in its native state and dislodge coal directly from the unmined mass over a wide area. oi said coal tace while said wall lac-lr actl as abutments.

In a miningF machine, the combination with a supporting trame, ot wail jacks on opposite sides thereof, a nlurality of spacedaoart penetratinggl wedg e; tools mounted on said frame to swing' in a predetermined direction relatively thereto,` anothe set of spaced-apart penetrating vvedggmg; tools mounted on said frame to swing relatively thereto in the opposite direction, and means 'for operating` said tools by in'iparting,v continuous forward sweeping movements thereto' to cause the tools to act on the coal in its native bed and slice off the entire working faces from the mine vein.

23. In a mining and loading machine, the combination with a supporting iframe, ot' disledging mechanism mounted thereon and g adapted to eneae'e the solid coal oi a mine vein :D c: and 'y wedging action tear th?y coal from the tace ot the mine vein, means coniprising rope gearing for operating said dislodgingl mechaam, means ai `uted to en,l re a wall ot iie mine chai bei' to resist the backward thrust duringl the operation of said dislodgrnechanism, and loading; apparatus for receiving the dislodged coal from the mine wall and conveying it toward loading position.

2li- 1n a mining and loading machine, the combination withsupporting iirameworlr, of coal splitting mechanism mounted on said irameivorlr for movement relatively thereto along` an uijiright mine wall, means igor Operating saidcoal splitting` mechanism to dislodge material trom said upright mine wall, a main eonveyer `for transiierring dislodged material toward loading' position, and a supplemental conveyor operable independently oi? said coal splitting mechanism for moving dislodged material alongl tl c base of the mine wall tmvard the receiving end of said conn a mining, machine, the combination supporting trame, el multiple peneand coal splittingi mechanism i'nountd frame for swinging movenient on along an upright arcuate coal comprising; a plural" 'y' oi spacedaparL elongated radial arms Wi th penctrating.r werlgingg t` ols proyectin,ov substantially at right ai from the outer en ds of said arms, and pov.r-operated mechan ifor moving s. i multiple penetrating,- und coal splitting` mechanism along; such #hilight arcuate coal tace to cause said pe-netratinol wcdging tools to dislodge the coal in large pieces.

26. in a miningl and loading;` n'iachinc, the couibination with a simporting frame, of a main con ve fer mounted thereon, a iiat supizflemelfital t conveyer elongated laterally from the i'oru'ard end oi said main conveyor and eomorising a fiat. plate with an elongated screening' edee adapted to extend alonnj the floor laterally from the main conveyt and mental conveyor connected to said main conveyer and adapted throughout substantially its entire length to lie horizontally flat on the floor adj acent said traine, and means mounted on said trame in position to dislodge the mineral from the mine vein on the same side as that on which the supplemental convoyer vis located, suoli mineral being dislodged into position to be gathered bysaid supplei'nental conveyor and transferred toivard said main conveyor.

28. ln a mining and loading machine, the combination with a supporting trame, of a main convoi/fer thereon, a pair oi elongatedv supplemental traveling flight conveyers cach comprising a thin iioor plate with tho traveling flights on top of tlie saine, said supplemental conveyers branching in opposite directions trom the forward end ot said niain conveyer and each adapted to transfer material along its i'loor plate toward the receivi end or' said main conveyor, and means mounted on said frame in position to disloc ge material adjacent said conveyors ior collection thereby.

29. ln a mining and loadiue' machine, the combination with a supperL L rame, of a. main vtraveling conveyer niounied thereon, a pair of supplemental traveling conveyors branching laterally trom the forward end ol said main conveyor, means for dislodging ma terial into the range oic said branching con veyers for delivery by the latter toward the receiving end ot' said main conveyer, and a scoop on the receiving end ot said main conveyer to collect from tlie floor onto the main conveyor the material gathered by said supplemental conveyors.

30. In a miningand loading machine, the con'ibination with a supporting frame, ot a main conveyer mounted thereon, a root ack at one side of the forward end portion of said conveyor for anchoring said iframe, and a supplemental elongated conveyer pivoted to the iorvvard end ot said in ain conveyer and toldable to a position under said root ack.

3l. ln a mining and loading machine, the combination with a supporting Ytrame, of a main conveyor mounted thereon, spacedapart roor acl-is at the sides oi the forward end portion ol said conveyer, :i paire;F flat elongated supplemental convej/ers pivot-ed to the forward end oi said main conveye" toldable under said root jacks, and meal-, operating said conveyers. Y

82. In a mining' and loadina machine, the combination with a main c er, oi a tliin Vflat plate to constitute elo receivi f portion adapted to extend alomj he base ot mine #all at the mine tloor, and a trefyeling` supplemental conveyor on top ot said thin ila-t plate to slide dislodged material along the latter toward the receiving' end of said main conveyer. j

33. In a coal mining and loading machine,

ln a mining'and loading machine, the n with a supporting frame, of a lmounted thereon, ioot'vjack mecha- .A the Jr'orivard end portion of said an upper movable i'rame, dislodging sin movable Vwith said upper Jframe ont in elevation, and roof jack for Said upper frame for anchorthe latter independently of said firstjack mechanism.

mining machine, the combination oi means comprising an electric operating said jack, a circuit `prising an electro-magnet in i i i said motor, and a reversing switch lor said motor and connected to cut out said electro-magnet when the rack is to be released by versal of the motor.

ln a min'i from the unmined mass, a pluralit or supports one for eacli of said tools Wit the space between adjacent supports free and unobstructed, means for mounting said supports on said frame for swinging movementy relatively thereto While said abutment resists movement of said frame, and means :for moving said supgorts to exert continuous thrusts onsaid tools to cause the latter to split the com vr'rom the upri glit coal Vtace in large pieces over a Wide area.

Si'. a mining machine, the combination Vwith. a supporting liframe, oit' an abutment, dislodeingmechanism comprising a plurality otv penetrating Wedging tools and individual Y therefor with the space between cach support and the next adjacent one ensupports tirely 'tree and unobstructed 'to afford freedom of doen penetration ot the tools into the soli d upv ht it'ace oi the mine vein, and means f ig said supports to exert continuous f thrusts on said tools While movement of said iframe resisted by said abut- Y ment.

ln a mining machine, the combination With a main frame, oia main conveyer on said main traine with its receiving end at the surface :trombivliich the material is to-be rivard receiving positionA 'ce located adjacent the base 0i loaded, a supplemental frame pivotally connected to the forward end of said main frame at one side thereof and at the ioor, said supplemental frame comprising an elongated re ceiving edge adapted to occupy a position adjacent the mine floor to facilitate movement of the dislodged material from the floor onto said supplemental frame, and a flight conveyer on said supplemental frame in position to travel along the elongated receiving edge close to the floor to transfer said material toward the receiving end of said main conveyer at the floor when said supplemental frame is adjusted to a position extending laterally away from the forward end of .said main frame.

39. In a mining machine, the combination with a main frame, of a main conveyer thereon with its forward receiving end adapted to rest on the floor of a mine chamber at the base of an arcuate mine wall, a supplemental frame pivotally connected to said main frame at one side of the forward receiving end thereof, and adapted to rest on the mine floor and extend arcuately along said arcuate mine wall, said supplemental frame having an elongated arcuate receiving edge adapted to rest cn the mine floor near the arcuate mine Wall, and a traveling Hight conveyer on said supplemental frame in position to operate along said elongated arcuate edge toward the receiving end of said main conveyer to deliver material to the latter.

40. In a mining machine, the combination with a supporting frame, of a pair of coal penetrating wedging devices mounted on said frame for either independent or simultaneous movement in opposite directions toward each other, means for operating said devices by swinging arcuate movements thereof relatively to said frame and in opposite directions toward each other, and means for controlling said movements so as to be either independent of each otheror simultaneous to 'multiple coal penetrating mechanisms by swinging arcuate movements thereof relatively to said frame and in opposite directions toward each other to cause each upright series of tools to penetrate the solid face of the coal vein in its native state and by wedging actions tear the coal in large pieces from such face over a wide area at and adjacent said tools.

42. In a mining machine, the combination with a main frame, of a main conveyer thereon having superposed parts traveling in opposite directions, a supplemental frame piv- V@tally connected to the forward end of said main frame at one lateral side thereof and adapted to be moved into folded position along one side of said main frame while retaining the space above said main conveyer free and unobstructed, and a supplemental conveyer mounted on said supplemental frame to travel a path close to the floor in position to transfer material to a position in front of the receiving end of said main conveycr when said supplemental conveyer is adjusted to a position extending laterally away from the forward end of said main frame.

In testimony whereof I have signed my 'name to this specification on this 19th day of June, A. 1920.

EDMUND C. MORGAN. 

